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Thermistor
fault
Protective
device for
compressor is
activated
Indoor thermistor is either open
or damaged.
Outdoor thermistor is either
open or damaged.
Protective device for compressor
No. 1 is activated.
Indoor coil temp. sensor (E1)
Indoor coil temp. sensor (E2)
Indoor coil temp. sensor (E3)
Indoor suction air (room) temp. sensor (TA)
Indoor discharge air temp. sensor (BL)
Outdoor No. 1 coil liquid temp. sensor (C1)
Outdoor air temp. s
ensor (TO)
Current is not detected when comp. is ON.
EEPROM on indoor unit PCB failure
Alarm
message
<<F01>>
<<F02>>
<<F03>>
<<F10>>
<<F11>>
F07
Compressor discharge sensor (TD)
F04
F08
F12
F16
F29
F31
H03
High pressure sensor
EEPROM on the outdoor unit PCB is a failure.
P02
P03
P14
P22
P26
H31
P16
P29
Compressor thermal protector is activated.
Power supply voltage is unusual. (The voltage is more than 260 V
or less than 160 V between L1 and L2 phase.)
Incorrect dischar
ge temperature.
P04
High pressure switch is activated.
P05
Detective phase (3-phase outdoor unit only)
O
2 sensor (detects low oxygen level) activated.
Outdoor unit fan motor is unusual.
Compressor suction port temperature sensor (TS)
Possible cause of malfunction
Improper setting.
<L03>
L04
L05
L06
L07
L08
<<L09>>
L17
Duplication of main indoor unit address setting in group control.
Duplication of outdoor R.C. address setting.
Group control wiring is connected to individual control indoor unit.
Indoor unit address is not set.
Capacity code of indoor unit is not set.
There are 2 or more indoor units
controllers which have operation
mode priority in 1 refrigerant circuit.
Priority set remote controller
Non-priority set remote controller
Protective device in indoor unit
is activated.
Protective device in outdoor unit
is activated.
<<P01>>
<<P09>>
<<P10>>
Thermal protector in indoor unit fan motor is activated.
Improper wiring connections of ceiling panel.
Float switch is activated.
P12Operation of protective function of fan inverter.
Activation of
protective
device
L18
Serial
commu-nication
errors
Mis-setting
Capacity code of outdoor unit is not set.
Mis-matched connectio
n of outdoor units which have different kinds
of refrigerant.
This alarm message shows when the indoor unit for multiple-use
is not connected to the outdoor unit.
L02
L10
4-way valve operation failure
Overcurrent at time of compressor runs more than 80Hz (DCCT
secondary current or ACCT primary current is detected at a time
other than when IPM has tripped.)
IPM trip (IPM current or temperature)
In
verter for compressor is unusual. (DC compressor does not
operate.)
Compressor running failure resulting from missing phase in the
compressor wiring, etc. (Start failure not caused by IPM or no gas.)
07-056 Mini_ECOi_II_NA 3/19/07 2:41 PM Page 80